1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
index cbb7db6..ae3c326 100644
--- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
@@ -2000,6 +2000,14 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM,
 
   setOperationAction(ISD::INTRINSIC_WO_CHAIN, MVT::Other, Custom);
 
+  // Some processors have no branch predictor and have pipelines longer than
+  // what can be covered by the delay slot. This results in a stall, so mark
+  // branches to be expensive on those processors.
+  setJumpIsExpensive(Subtarget->hasNoPredictor());
+  // The high cost of branching means that using conditional moves will
+  // still be profitable even if the condition is predictable.
+  PredictableSelectIsExpensive = !isJumpExpensive();
+
   setMinFunctionAlignment(Align(4));
 
   computeRegisterProperties(Subtarget->getRegisterInfo());